Display screen or portion thereof with icon



FIG. 1 is a front view of the display screen or portion thereof with icon, according to a first embodiment; and,

FIG. 2 is a front view of a second embodiment thereof.

The broken lines illustrate the display screen or portion thereof and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with icon, as shown and described. 